The Cub Cadet RZT 22 coolant capacity is listed as 0.66 gal (2.5 L). It also lists coolant type ethylene glycol-based coolant.
Coolant capacity0.66 gal (2.5 L)
Coolant typeethylene glycol-based coolant
Cub Cadet RZT 22 Coolant Capacity
Coolant capacity
0.66 gal (2.5 L)
Coolant type
ethylene glycol-based coolant
Engine horsepower
22 hp (16.4 kW)
Engine displacement
0.7 L (44.2 cu in)
Coolant Capacity Comparison Chart
Coolant capacity comparison
This model
0.66 gal
Average
1 gal
Low
0.5 gal
High
2 gal
Engine horsepower comparison
This model
22 hp
Average
18 hp
Low
10 hp
High
30 hp
Engine displacement comparison
This model
0.7 L
Average
0.9 L
Low
0.5 L
High
1.5 L
Cub Cadet RZT 22 Coolant and Engine Notes
Coolant capacity note
The Cub Cadet RZT 22 coolant spec points to 0.66 gal (2.5 L). Do not rely on the radiator-only amount if the full cooling-system capacity is available
Coolant type note
For the Cub Cadet RZT 22, coolant type matters as much as capacity. The clean captured value is ethylene glycol-based coolant
Engine context note
Engine context for the Cub Cadet RZT 22: engine horsepower 22 hp (16.4 kW) and displacement 0.7 L (44.2 cu in). Engine size helps explain why coolant capacity changes between models
Refill note
The practical service move for the Cub Cadet RZT 22: buy enough coolant for 0.66 gal (2.5 L), fill to spec, run the engine, then recheck the radiator and overflow bottle after cooling
Cub Cadet RZT 22 Coolant Capacity FAQ
What is the cooling system capacity of the Cub Cadet RZT 22?
The Cub Cadet RZT 22 cooling system capacity is shown as 0.66 gal (2.5 L). That is the number to use before draining the system.
What coolant type should I use in the Cub Cadet RZT 22?
Use ethylene glycol-based coolant. The blunt rule is simple: match the manual’s coolant spec and do not mix unknown coolant formulas.
Should I use straight water in the Cub Cadet RZT 22?
Not for normal long-term use. The Cub Cadet RZT 22 should use the coolant mix specified in the manual or the manual’s specified coolant mix so the system gets corrosion, freeze and boil protection.
Does old coolant matter in the Cub Cadet RZT 22?
Yes. Old coolant can lose protection even if temperature looks normal. The listed service interval for the Cub Cadet RZT 22 is the service interval in the operator manual.
Why does the Cub Cadet RZT 22 coolant amount differ from other models?
Coolant capacity changes with engine and radiator setup. For the Cub Cadet RZT 22, the supporting engine data is horsepower 22 hp (16.4 kW) and displacement 0.7 L (44.2 cu in).
Official information note
Mistakes do happen. Tractor coolant specs can change by year, market, engine, radiator, cab/heater setup and service procedure. Please check the operator manual, decal information and official cubcadet.com website for official information before draining or refilling the cooling system.
